Fan-housing cooling extension.



'Patented Aug. 13,

Inventar HerrbertHJIart l H. H. HART. FAN HOUSING COOLING EXTENSI'ON.l

APPITICATION FlLED AUGJMVVTSH. 1,275,682.

isis

i To all 'whom it may concern vcool air directly on the engine.

V.extends backwardly tubes, thus producing a flat lower iace 3 eX-HERBERT H. HAB/I, OF ORCUTT, CALIFORNIA.

FAN-HOUSING' COOLING EXTENSION.

Specification of Letters Patent. Patented Aug. 1.3, 1918.

Application filed August 14, 1917. Serial No. 186,234.

Be it known that I, HERBERT H. HART, a citizen of the United States,residing at Orcutt, in they county of Santa Barbara and State ofCalifornia, have invented new and useful Improvements in Fan-HousingCooling Extensions, of which the following is a specification.

My object is to improve the lay-out and construction of a. fan housingto be bolted on to the rear of the radiator of any type of automobile,motor truck, or the like, ,for the purpose of better cooling theradiator and engine, by producing a better suction of air, with ythe aidof the fan, through the tubes of the radiator, andconcentrating thisOrdinarily, without my invention, the suction of air is only noticeablein a small spot directly in front of the fan and the eoolair isdistributed mostly around the hood of the engine where it does verylittle good.

Specically, my Objectis to make a fanhousing cooling extension which maybe readily applied a close joint all around the radiator, which may bepressed tightly into place., which has non-metallic packing and cushionsto form a tight 'joint and prevent rattling, and which will draw airthrough all parts of the radiating field and concentrate the air uponthe hottest part of the engine.

The drawing illustrates the invention.

Figurelisavertical cross-section showing n'iy fan housing coolingextension in position for use and attached to the rear side of theradiator and extending-backwardly aroundthe fan, the view being taken onthe line 1%1 of' Fig. 2.

Fig. 2 is a vertical longitudinal section on the line Q-2 of Fig. 1.

Fig is a perspcc .'ve of the fan housing cooling extension removed fromthe radiator and fan.

Fig. 11 is an enlarged fragmentary iscc :tional detail on theline 4-4-of Fig'. 1.

, he radiator 1 has a doiiie 2 and this dome beyond the radiator tendingbaekwardly across the top ot thc radiator and below the dome. rl`he sidewalls 4 of the radiator l extend liackwardly beyond the tubes and I'orniflanges 5 and the rear edges 6 of these laiiges ai'e olf-set inwardly,as `shown in detail in Fig. 4, Transverse [tangos 7 extend inwardly fromor removed, which will form "fiat an in a transverse plane.

. The body 14 is preferably stamped froml sheet metal and has a circularcentral opening 15, the margin 16 around the opening 15 beingsubstantially flat so that it will-stand in a transverse vertical plane,'as shown in housing cooling ex- Fig. 2; The intermediate porti-on 17immediately surrounding the flat portion 16 is dished or curved andextendsl outwardly and forwardly from the flat portion 16,"and the rim18 is constructed to fit'the radiator.- to

which the housing is to be applied.

The overflow pipe 19 extends from the radiator cap 20 through theflat-face 3 di! 9 and then extends` rectly behind the pipe laterallybehind the tubes of the radiator l and downwardly 'inside iianges 5.-n AA A ange 21 extends'backwardly from the upper edge of the'portion `,17and has a notch '22 at its center for the overiow pipe 19. A heavy feltpacking and cushion 23 is' seein-.ed to this fhnge 21 by rivets-24, andth/e flange and packing tits|` tightly against the. Attaching along.the4 l'lat lower face 3 of the dome. plates 25 and 2G extend verticallysido edges of the portion 1-7 from the ends of the' ange 21, saidvattaching plates being and packing strips 27 are secured z lgainst therear rivets and said packing strips 4fit against ,the transverse {iangcsof the plates 25 and 26, andi the lower edge of one of the Felt cushion'faces of these plates 25 and 26by' 7. From the lower endsV the corner-S28 and 29 20 of the portion 17 areI tuiiicd inwardly and upwardly toproduce the flat flange 31, and a packing and cushion strip 32 issecured against this flangel and fits against the face 12, there being adepression 33 to pass` the pipe 11. When the extension is in place there.is a'practcally airtight joint all the way around the riiii 18.

llinge members 34 are. scout-cd =iiir hori-l n :he plates zontalalineinent to extend fro 25 and 2U; and ieach hinge comprises an at- 'indotted lines in taching plate secured to the portion 17, the hinge pin36 being some distance inside of the outer edge of the-plate 26.Thesecond hinge member 37 is secured to the hinge pin 3G and has aportion 38 extending outwai-diy to the flange 5 and a portion 39 bent.at right angles and fitting against the 1nner face of the flange 5, anda portion 40 extending backwardly from the portion 39 and iittingagainst the inner face of the otl'set portion 6 and extendingbztekwardly beyond the edge thereof. Screws 41 are inserted through theianges 5 and are screwseated into the portions 39er' the hinges.

When the fan' housing cooling extension is about to be applied, themembers' 37 ot' the hinges are turned,inwardly, as shown Fig. 4, untilthe fan housing has been seated. 'Then the/members 37 are pressedtightly 'outwardly to press the housing lirnily into its seat, theportions 39 of the hinges fitting against the inclined faces 42 betiveenthe iianges 5 and the ti set portions (3, 'so that are applied to drawthe portions against the ianges irinly seated and. the packings andcushions. The packings and cushions serve to forni tight joints and toprevent rattling'. The-extended ends 43 of the hinge members 37 serve ashandles for swinging the hinges into and ont of position. The hood 44 ofthe enginefits against the outer faces of the extensions (i and as soonas the hood is raised the handle portions 43 are accessible, as clearlyshown 3%) tightly the extension will be in Fig. 4.

The opening l5 is smaller than the diameter of the fan 45 Aand the ltansets concentric to "theopening 415 and substantially halfway between therearface'of the radiator l and the edge of the niargin 16 around theopening.

I havefound by extensive experiinenting and use tha-t'this constructionproduces good results, The alr is drawn through all parts of theradiating field and is concentrated and directed to the hottest part ofthe en? gmc, instead of being thrown outwardly to the hood.

when the screws 4lpressed tightly against` I claim:

prising the combination with a radiator and lian, Ao a seat extendingaround the rear itaee of the radiating field, a. dished plate having anopening in its center, a riin upon the dished plate, a. non-metallicpacking and cushion upon the rim and fitting the seat, and hingessecured to the riin and screwed to the radiator to hold the rim tightagainst. the cushion and the cushion Itight against the seat.

A fan housing cooling extension comprising the eoinbiinltion with aradiator and lian, et iianges extending invardly 'from the rear edges ofthe sides of the radiator in transverse alineinent with the rear flattace ot' the bottoni of the radiator, second integral iianges extendingbackwardly from the sides ot the radiator beyond the iirst iianges, abody iornied oi. sheet metal and haring a circular central opening;thi,l margin around the opening being substantially tial'. in aytransverse plane, the intermediate portion surrounding the Hat portionbeing dished, and the rim aro-und the internindian?-y portioniitting theErst fianges and th." sur tiiat iace, there being cushions .secured tovthe riln between the anges and dat face;

hinges secured to the sides of the internie* diate portion and engagingthe second flanges, and ineans securing the hinges to the secondfianges.

The combination with av radiator hav ing flat transverse faces at itsrear sides and bottom, of a body formed of sheet inetal and having acircular central opening; the margin around the opening beingtransversely flat, the intermediate portion around the u'iargin beingdished, and the run around the intern'iediati-x Iportieri being dat inlit the fiat faces oi,E the radiator; and if secured to 'the sides ofthe body; there ing integral flanges extending backwaY .from theradiatoragainst which the hir i. [it and there being rneans for securing hingestothe flanges.

In testimony whereof I have naine to this specification. Y i

" HERBERT H. HART.

.signed in

